Machine for making type-writer ribbons.



No. 760,123. PATENTBD MAY 17, 1904. F. B. HOW. MACHINE FOR MAKING TYPEWRITER RIBBONS. APPLIOATION FILED SEPT. 26, 1903. .110 monm.zsnnnms-snnm 1.

WITNESSES y I No. 760,123; PATBNTED MAY 17, 1904.

F. B. How.

MACHINE FOR MAKING TYPE WRITER RIBBONS.

n APPLICATION FILED SEPT; 26, 1903. 1(0 MODEL. 2 SHEETS-SHEET 2.

WITNESSES:

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UNITED STATES Patented May 17, 1904.

PATENT OFFICE.

MACHINE FOR MAKING TYPE-WRITER RIBBONS.

SPECIFICATION forming part of Letters Patent No. 760,123, dated May 17,1904.

Application filed September 26, 1903. Serial No. 174,802. (No model.)

J the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to certain improvements in machines for makingtype-writer ribbons, and has for its object to provide a simple andefficient machine for this purpose; and with these ends in view myinvention consists in certain details of construction and combination ofparts, such as will hereinafter be fully set forth and then specificallybe designated by the claims.

In the accompanying drawings, which form a part of this application,Figure 1 is a side elevation of my improved machine; Fig. 2, a sectionat the line 2 zof Fig. 1; Fig. 3, a longitudinal sectional elevation ofthe operative parts of my machine removed from the bedframe; Fig. 4, asection at the line :0 of Fig. 3; Fig. 5, a section at the line y y ofFig. 3, and Fig. 6 a detail broken plan of a piece of fabric as itappears immediately prior to passing through the inking-rolls.

Similar characters of reference denote like parts'in the several figuresof the drawings.

1 is any suitable bed-frame, and 2 a long shaft journaled at one sidethereof and carrying a power-pulley 3 at one end.

4 5 6 7 8 are worm-gears carried by said shaft for the purpose presentlyto be explained.

9 10 are rollers journaled one above the other in the frame 1, and 11 isa shaft journaled in the frame and carrying a series of disks 12, whichhave frictional contact with the lower roller 10. The lower portions ofthese disks are submerged in a bath of any suitable liquid gum, such asshellac, contained within a trough 13, supported by the frame 1. 1 1 15are shafts journaled in said frame and carrying, respectively,eutter-disks 16 17 18 19 are ironing-rollers journaled one above areworm-gears 241, 25, 26, 27, and 28, which gears mesh with the gears 4,5, 6, 7, and 8, so that it will be clear that the roller 10, the cutters17, and the rollers 19, 21, and 23 will have a positive revolution,whereas the remaining rollers and cutters, as well as the gumming-disks,will all be revolved by frictional contact with positively-revolvingparts. This manner of arranging and operating these various parts is notessential, since every ele-' ment may be operated positively, ifdesired,

in several ways, all of which are well known as being within theknowledge and practice of ordinary mechanics.

29 is the ink-reservoir, which is supported on the frame 1 immediatelyover the roller 20, the bottom of said reservoir being provided with anopening, so that the ink will be constantly applied to this roller. Anyof the well-known means for supplying the ink to this roller maybeemployed, since this is an unimportant feature, and I do not wish to belimited in this respect.

The operation of my improvement is as fol lows: I take any suitablefabric, preferably in the form of a roll 30, supported on a bracket 31,extending from the frameof the machine, and of a Width sufficient tomake a plurality of ribbons, and lead the same between the rollers 9 10,the cutters 16 '17, the rollers 18 19, the rollers 20 21, and therollers22 23 and then draw the fabric continuously either by means of anordinary winding-roll or in any other suitablemanner. Very little poweris required to draw the fabric, since the positively-revolving rollerswill greatly assist in this operation. The marking-disks 12 are spacedapart by a distance substantially equal to the desired width of theribbons and will lay narrow stripes of the gum on the face of the roller10, which latter will transfer the gum to the fabric, so as to formthereon at regular intervals narrow markings. The up: per roller 9 actsto. iron the fabric, so as to cause the gum to permeate the fabric andto slightly diffuse, whereby well-defined stripes are formed, as shownat a, in Fig. 6.

The several pairs of cutters 16 17 are so disposed and alined withrespect to the ver-' 'tical planes of the marking-disks 12 that saidcutters will bisect the stripes a longitudinally, as shown by the dottedlines 6 in Fig. 6, so as to cut the fabric into ribbons of equal width,while the rollers 18' 19 will still further iron down these ribbons, soas to set their gummed edges.

The ribbons are thoroughly inked by the roller 20, which latter, inconjunction with the roller 21, compresses the ribbons, so as to causethe ink to thoroughly permeate the ribbons, while the rollers 22 23serve to give a good finish to the ribbons, as well as to cause the inkto be distributed evenly. I have found that the ironing-rollers 18 19and the. finishing-rollers 22 23 may be dispensed with and that ribbonsproduced without these parts are serviceable; but I prefer to utilizethese rollers, since I can thereby obtain a very superior ribbon whichwill be thoroughly and uniformly provided with selvage edges and, inkandwhich will not readily become dry. Thegut npieventsihesiile edges of theribbons from raveling or becomfig'frayed, and when pr n i arrsialroveTfiT ihi e e suit is fullyqu'al'to that obtained by selvage:edges, woven in the ribbonsf ifiwill of course be understood that asingle marking: of the gum when out in the manner above described willprovide two selvage edges, and in this connection I desire to callattention to the fact thatany rough edges resulting from the cutting arethoroughly ironed down and caused to become saturated with the gum bythe action of the rollers 18 19.

It will of course be obvious that I can dispense with any means forgiving positive revolutions to any of the parts of my improvement, sincethe dragging of the fabric through the machine will cause the variousrotary parts to perform their functions, and also stationarycutter-knives may be used in stead of the rotary disks, and therefore Ido not wish to be limited in these respects.

I have found that the ordinary gum is well adapted for the purpose oflaying selvage edges to the ribbons, since it will stiffen and holdtogether all rough or loose fibers that would otherwise be likely tofray out; but any analogous substance will answer this purposeas, forinstance, any of the well-known gum-varnishes and I do not wish to belimited in this respect, except in so far as a liquid stifieningcompoundis concerned.

Having'thus described my inventioniwhatI claim as new, and desire tosecure by Letters Patent,is I

' 1. In a machine for making type-writer ribbons, the combination ofmeans for applying to the fabric a liquid stifiening compound inthe formof narrow parallel stripes which extend lengthwise of the fabric and areseparated by a space substantiallyequal to the desired width of ribbon,means for bisecting said stripes longitudinally, means for fiXing saidcompound Within the fabric, and means for inking the fabric,substantially as set forth.

2. In a machine for making a plurality of type-writer ribbons from anintegral piece of fabric, the combination of means for applying to thefabrica liquid stiffening compound in the form of a plurality of narrowparallel stripes which extend lengthwise of the fabric and are separatedby a space substantially equal to the desired width of ribbon, means forbisecting said stripes longitudinally whereby a plurality ofselvage-edged ribbons is obtained, and means for inking the ribbons,substantially as set forth.

3. The combination of the rollers 9, 10, the marking-disks in contactwith the roller 10, the trough'containing a liquid stiffening compoundwithin which said disks are adapted to jrevolve, the rotary cutters, andthe inkingrollers and means for applying ink thereto, substantially asset forth.

a. T he. combination of the rollers 9, 10, the

rotary marking-disks in contact with the roller FRED BRADFORD HOW.

Witnesses V BESSIE L. WEBBER, THOMAS T. HINKLEY.

